Patents by Inventor Jan W. Vander Sande

Jan W. Vander Sande has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Annealing Group III-V compound doped silicon-germanium alloy for improved thermo-electric conversion efficiency
    Patent number: 4849033
    Abstract: The thermoelectric conversion efficiency of a GaP dope SiGe alloy is improved about 30 percent by annealing the alloy at a temperature above the melting point of the alloy, preferably stepwise from 1200.degree. C. to 1275.degree. C. in air to form large grains having a size over 50 .mu.m and to form a Ge-Ga-P rich phase and a silicon rich phase containing SiP and SiO.sub.2 particles.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: July 18, 1989
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jan W. Vander Sande, Charles Wood, Susan L. Draper